AN: Hello guys! So, I forgot to post an authors note on chapter one, forgive me hahah but I'd like to say welcome to this story and explain a little what I have in mind. So, if you've read chapter one you can probably tell that it's an Sirius/OC fanfic, which it is hahha and I'm thinking of the timing being focused on order of the phoenix, but with part one (this one) being a story about how Leona and Sirius met, back in Hogwartz, so the plan is for the story to be divided into different parts. Hope you like it, and please leave reviews about what you think and forgive the English as I'm not a native speaker, happy reading!

Chapter two; Alohomora

I don't know how long I stood there, staring at everyone, with tears in my eyes, trying to find something to say. Sirius was staring at me intently, his grey eyes piercing into my soul, and my heart ached, for what I had done to him and everyone. After a while I sighed, wiped my tears away and took a deep breath.

"Sirius.. I'm so sorry." I whispered and looked down, feeling slightly ashamed as the only thing I could utter was a weak apology. I couldn't even look him in the eye anymore.

"Who are you exactly..?" Harry said, and I quickly set my eyes on the boy, he was rather skinny and his eyes looked worn and tired, almost as if he was years older than the age of fourteen.

"I am…..or rather I was good friends with both your parents, Sirius and Remus, Harry." I said weakly and his eyes widened as my words sank in.

"You went to Hogwartz together?" another voice pitched in, this being the girl standing closest to Harry, I figured it was his friend.

"Yes." I replied shortly and this time Sirius cleared his throat.

"She's more than a friend." He said, taking a step closer to me.

"Why, Leenie?" he whispered and I looked away.

"Because I had to." I murmured still not looking into his eyes, and by this time Dumbledore cleared his throat and gestured towards me.

"Well I'd say since not all of you are familiar with miss Shaw, I'd rather much like for you to see everything this wonderful girl has done, miss Shaw do you mind sharing?" he said, gesturing to the pensieve he had summoned with his wand.

"Of course sir." I said quietly, bringing my wand to my temple, closing my eyes as I withdrew all memories of my past, all the years in Hogwartz, the years after and the night at Godrics Hollow. I placed the memory into the pensive and gestured for everyone to enter, they looked at it hesitantly and I sighed.

"Well go on then, lets see what miss Shaw has to offer us." Dumbledore said and they all popped their heads into the pensive.

September 1973

"Leona, sweetheart don't forget your wand!" I heard my mother yell as I was running towards platform 9 ¾.

"Mum, it's my third year at Hogwartz, I'm certainly more than capable of remembering my wand!" I yelled back at her, feeling my hair turn red as I got annoyed. I was born a metamorphmagus, but I had learned to control it, except when I got emotional, then it pretty much was out of control.

"I know sweetheart, I'm just making sure." She said and I sighed before smiling and hugging her, my hair turning back to its normal dark brown.

"I'm sorry, I'm just feeling a bit strange today, that's all." I said and she smiled.

"Off with you now before the train leaves, and don't forget to write I expect a letter every month!"she said and I laughed before kissing her cheek and leaving, promising her to write. As I left my trunks, I decided to go find an empty compartment to sit in, I had always been quite the introvert at Hogwartz. I was sorted into Gryffindor, but I had managed to keep myself invisible for the past three years which worked best for me. As I walked down the train I sighed as I didn't find any compartment that was empty, but I kept looking wanting to avoid people at all costs. I smiled as I finally found one, and quickly slid inside, making myself comfortable. As I opened my book I was reading, I leaned my head against the window and smiled, it was always good to go back to Hogwartz.

"Oi James, I found us a spot here." I heard a familiar voice scream and I groaned, I guess I wasn't going to spend the time alone. As I heard them get closer to my compartment, I immediately straightened up and hid under my book.

"Ehm excuse us, but do you mind us sitting here, everywhere else is full." I heard a girl say and I looked up, recognizing Lily Evans immediately.

"Not at all, please come in." I said quietly, smiling at them. Before me I saw Lily Evans, James Potter, Sirius Black, Remus Lupin and Peter Pettigrew.

"Are you in Gryffindor, what's your name?" Lily gushed as she sat next to me, looking at me curiously. I blushed, feeling embarrassed, which also meant that my hair and skin turned a lovely shade of pink, I cringed at the situation.

"Wow, you're a metamorphmagus!" James said before I could answer Lily and I nodded, quickly making sure my hair and skin turned back to their normal shades.

"My name is Leona Shaw, and yes I'm in Gryffindor, third year." I replied shyly and I could feel them looking at me, especially Sirius Black.

"Well Leona Shaw, it's certainly is a pleasure to meet you." Sirius said, grinning widely and I shifted in my seat, bollocks….